1. Finnsheep and their crosses under subtropical conditions;Aboul-Naga;J. Agr. Sci. Finland. Maatalous Tieteellinen Aikakauskirja,1988
2. Lamb crop every eight months from subtropical fat-tailed sheep;Aboul-Naga,1983
3. Fattening performance and carcass quality of Suffolk crossbred lambs compared with Ossimi;Aboul-Naga;Agr. Res. Rev.,1974
4. The effect of crossing Merino with Ossimi and Barki sheep on some productive traits;Aboul-Naga;J. Agric. Sci. (Camb.),1972
5. Cross-breeding system utilizing desert and valley native sheep breeds;Aboul-Naga,1990